Ments



J. J. BOTTLANDER.

IGNITION DEVICE.

APPLICATION FILED MAR. 4. I9I5.

Patented Aug. '15, 1916.

FIELE a one.

. JACOB J. BOTTLANDER, OF TOLEDO, OHIO, ASSIQNOR, BY DIRECT AND MESNEASSIGN- MENTS, OF ONE-THIRD TO JOHN RUSSELL HARRY AND ONE-THIRD TO HARRYC.

COTTER, BOTH OF TOLEDO, OHIO.

IGNITION DEVICE.

Application filed March 4, 1915.

To all whom it may concern:

Be it known that I, JACOB J. BOTTLANDER, a citizen of the United States,residing at Toledo, Lucas county, Ohio, have invented new and usefulIgnition Devices, of which the following is a specification.

This invention relatesto auxiliary fueling means in connection withignition apparatus, especially for initially promoting combustion, as ininternal combustion motors.

This invention has utility when incorporated in spark plugs for economicpriming.

Referring to the drawings: Figure 1 isa side elevation of a spark plugembodying the invention; Fig. 2 is a medial vertical section through thespark plug of Fig. 1; Fig. 3 is a section on the line III-III, Fig. 1,looking in the direction of the arrow; and Fig. 4 is a fragmentary sideelevation of the reservoir electrode.

The spark plug comprises the cylinder engaging bushing or groundelectrode 1 in which may nest the porcelain or insulator 2 havingconcentrically cemented therein the second electrode 3. Upon thiselectrode 3 above the porcelain 2 are threaded the elements 4, 5, forengaging an electric conductor therebetween. Mounted on the threadedupper end of the electrode 3 beyond these electric terminal connections4, 5, is the valve 6 having the rotatable stem 7 movable to open orclose the passage from the bowl or priming funnel 8 to the duct 9 of thetubular electrode 3. This duct 9 extends past the openings 10 andterminates at the reservoir or fuel holder 11 therebeyond in the closedend of this tubular electrode 3.

The ground electrode 1 has electrode extensions or points 12 extendingadjacent the openings 10 forming a spark gap at the top of the reservoir11.

With the spark plug installed in a cylinder of an internal combustionengine, for readily starting the engine, a small charge of fuel, saygasolene, may be supplied, by opening the valve 7. This fuel will passby way of the duct 9 to the holder or reservoir 11. The valve 7 may beclosed. The engine may be cranked, either manually or by power, and theelectric current made and broken, or rather sparkingproperly timed withthe normal fuel supply to the engine Specification of Letters Patent.

Patented Aug. 15, 1916.

Serial No. 12,097.

cylinder and compression thereof. As the flash occurs across the sparkgap between the electrodes from the openings 10 to the points 12, thefuel entrained in the reservoir 11 has its surface region in such closeproximity to this flame as to be ignited most readily and in itsexplosion promote combustion throughout the entire cylinder for aworking pressure upon the piston. A very small quantity of primingliquid is sufficient for starting even a cold motor, and due to thereservoir, the priming charge is flashed off to serve for severalexplosions. The position of the reservoir is such that in the actualflashing and explosion, as well as the compression and exhaust periods,there is not a current flow of gas to blow the fuel out of the reservoir11.

In the supply of priming fluid, the connections and control for thevalve may be extended or conformed to suit convenience in installationor operation.

What is claimed and it is desired to secure by Letters Patent is:

1. A priming spark plug embodying a bushing, an insulator mountedtherein, a tubular electrode extending through the insulator, saidelectrode having its inner end closed and an opening spaced from theclosed end, whereby in the tube below said opening a reservoir isprovided which may be supplied through the electrode, which reservoirhas an opening independent of the supply intake, and a terminal adjacentthe opening and spaced therefrom to form a spark gap adjacent thereservoir.

2. A priming spark plug embodying an insulator, a tubular electrodetherethrough, said electrode being closed at one end beyond theinsulator to form an open surface reservoir, a valve in the electrodebeyond the opposite end of the insulator and spark gap forming meansover the reservoir surface.

3. The combination with a pair of electrodes spaced to form a spark gaptherebetween, of a fuel holder in one of said electrodes, said holderhaving a fuel retaining bottom and providing a surface immediately belowthe spark gap, there being a duct to duct.

spark gap, a duct leading to said reservoir, and a valve in the duct.

5. The combination with a pair of electrodes spaced to form a spark gaptherebetween, of a reservoir below the spark gap,

one of said electrodes providing a duct leading to said reservoir, and avalve in said 6. The combination with a pair of electrodes spaced toform a spark gap therebetween, one of said-electrodes providing areservoir and a reservoir supplying duct past the spark gap to thereservoir.

7. A priming spark plug having a duct therethrough terminating in areservoir, a valve in the duct, and a pair of electrodes forming a sparkgap adjacent the top of said reservoir.

8. A priming plug provided 'With an

